Reconciliation of Segment Operating Profit to Income (Loss) from Continuing Operations before Interest, Loss on Extinguishment of Debt and Taxes (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Apr. 01, 2012
Segment Reporting, Other Significant Reconciling Item [Line Items]
Segment operating profit	$ 58,563	[1]	$ 60,425	[1]
Goodwill impairment			(332,128)
Restructuring and other impairment charges	(9,159)		1,325
Income (loss) from continuing operations before interest and taxes	$ 49,404		$ (270,378)

[1] Segment operating profit includes a segment's net revenues from external customers reduced by its cost of goods sold, selling, general and administrative expenses, research and development expenses and an allocation of corporate expenses. Segment operating profit excludes goodwill impairment charges, restructuring and impairment charges, interest income and expense and taxes on income.